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Formula used :
Tan theta =sintheta /cos theta
Sec theta =1/cos theta.
Step-by-step explanation:
LH S
Sin theta /cos theta +1/cos theta - 1
= ___________________________
Sin theta /cos theta -1/COS theta+1
Sin theta +1 - cos theta
_________________
Cos theta _=__________________________
SIN theta - 1 +cos theta
__________________
Cos theta
1+SIN theta
= __________
COS theta
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